Thank you, but why? I mean, server managed is not a supported mode of Litespeed? And what can you tell me about shared memory with opcode? Is it a security problem if "n" sites share the same opcode memory?

Yes, your settings are fine with 4.2. that one instance is the parent to spawn/manage all the children processes. in daemon mode, xcache (and other opcode cache) is safe to be shared by PHP processes with different userid (shared environment).